Modeling the shear-dependent viscosity of nonionically stabilized waterborne dispersions

[EN] The performance of a rheological model that accounts for the effect of the volume fraction, the particle size distribution, and shear rate on the viscosity of water-borne dispersions stabilized with conventional nonionic surfactants and polymeric stabilizers is assessed. The model that contains...

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Detalles Bibliográficos
Autores: Bohorquez, Silfredo J., Asua González, José María
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/56555
Acceso en línea:http://hdl.handle.net/10810/56555
Access Level:acceso abierto
Palabra clave:rheological model
polymeric surfactants
waterborne dispersion
High-solid content latexesh
Descripción
Sumario:[EN] The performance of a rheological model that accounts for the effect of the volume fraction, the particle size distribution, and shear rate on the viscosity of water-borne dispersions stabilized with conventional nonionic surfactants and polymeric stabilizers is assessed. The model that contains three parameters fitted well the experimental data. The parameters were independent of the volume fraction, the particle size distribution, and the shear rate. Furthermore, two of them were not affected by the surfactant type and concentration, and temperature. The other parameter increased with the surfactant molecular weight and surface covering, but decreased with increasing temperature.